LNG: rethought, retooled and reimagined


Commonwealth LNG is developing a 9.5 Mtpa liquefaction and export facility on the west bank of the Calcasieu Ship Channel at the mouth of the Gulf of Mexico near Cameron, Louisiana. The facility will have five 50,000 M3 storage tanks and will be able to accommodate vessels up to 216,000 M3. Gas supply is via construction of a 3.0-mile pipeline interconnected to two major pipeline systems with significant excess transportation capacity.

Our Approach

Commonwealth’s engineering-focused approach features a highly modularized methodology, designed to streamline schedule and reduce capital costs.

The advantages of the modular approach are especially important in Southwest Louisiana. The area is the epicenter of U.S. LNG production, so the competition for construction labor and other required resources can be challenging.

Through modularization, Commonwealth can move more than 10 million workhours out of the field and into fabrication shops. This reduces field construction of the Commonwealth project to an average of less than 800 full time equivalent workers per month and less than 2,000 personnel during the peak of construction.

A typical field-built project of similar size would require a peak labor force of 8,000 to 10,000. Reducing the onsite labor force also reduces the strain on the local community’s need for additional police force, temporary infrastructure, and support.

Facility Video Tour

Key Relationships

Commonwealth LNG’s project is supported by some of the industry’s leading suppliers of engineering, construction and professional project support services. 

Engineering, Procurement and Construction

Technip Energies
Air Products

Baker Huges
Primoris On Quest


Financial and Legal

Primary Council:

King & Spalding







Commonwealth received FERC authorization on Nov. 17, 2022.

FID is targeted for H1’25. Using a highly modularized approach will enable the company to build the facility with greater schedule and cost assurance, allowing LNG production to begin by the end of 2028.

Q4 2022

Full FERC Approval Received

Q2 2023

Completion of FEED with Technip Energies

H1 2025

FID / Start of Construction

Q4 2028

LNG Production Commences